*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: 'Poppins', sans-serif;
    background-color: #f0f0f0;
    color: #333;
}

nav{
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: #333;
    color: white;
}

nav picture h1{
    font-size: 24px;
    color: white;
}

nav ul{
    list-style: none;
    display: flex;
    gap: 20px;
}

nav ul li{
    position: relative;
}

nav ul li a{
    text-decoration: none;
    color: white;
    font-size: 18px;
    padding: 10px 20px;
    transition: background-color 0.3s ease;
}

nav ul li a:hover{
    background-color: #444;
    border-radius: 5px;
}

.hamburger{
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.hamburger .bar{
    width: 100%;
    height: 3px;
    background-color: white;
    transition: all 0.3s ease;
}

/* responsive */
@media (max-width: 768px){
    nav{
        align-items: flex-start;
        justify-content: space-between;
        flex-wrap: wrap;
    }
    nav ul{
        display: none;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        flex-wrap: wrap;
        background-color: #333;
    }

    nav ul li{
        width: 100%;
    }

    nav ul li a{
        padding: 15px;
        text-align: center;
    }

    .hamburger{
        display: flex;
        flex-wrap: wrap;
    }
}